Analysis of energy consumption characteristics of dual-source trolleybus

Sun, Fengchun; Liu, Bin; Wang, Zhenpo

doi:10.1109/itec-ap.2014.6940838

Cited by 4 publications

(3 citation statements)

References 5 publications

(3 reference statements)

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“…In some cases to highlight in the Americas, such as San Francisco, Seattle, Boston, Dayton, Mexico City and Sao Paulo, trolleybus lines were maintained, and with the exception of Boston, these cities have strong plans involving trolleybus technology in the future, mostly thanks to state of the art Li-Ion batteries. Contrary to the common belief, new batteries are potentiating trolleybus technology, because the combination of grid-connected and off-wire battery operation is eliminating the restriction of both schemes, and joining their advantages; nowadays, under trolleybus conductive platform, the use of dual-source catenary-battery IMC buses are gaining relevance in Europe and specially in China [22,23]. Trolleybuses remained important in East Europe and Asia, regions in where they are also gaining strength with new large systems in the Chinese cities of Shanghai, Baoding and Jinan, and two BRT lines with articulated trolleybuses in the Turkish cities of Malatya (2015) and Sanliurfa (2018).…”

Section: Conductive In-motion Chargingmentioning

confidence: 99%

“…However, the Quito scheme has been followed by Beijing and Shanghai. The former has electrified 18 BRT lines with battery-backed trolleybuses, and the latter inaugurated in 2020 its last generation BRT line with IMC trolleybuses [23]. Cities that include trolleybus systems within the range of electrification options tend to be those that are currently operating a trolleybus network.…”

Section: Conductive In-motion Chargingmentioning

confidence: 99%

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A Planning Method for Partially Grid-Connected Bus Rapid Transit Systems Operating with In-Motion Charging Batteries

Díez¹,

Restrepo²

2021

Energies

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This paper presents an electrical infrastructure planning method for transit systems that operate with partially grid-connected vehicles incorporating on-board batteries. First, the state-of-the-art of electric transit systems that combine grid-connected and battery-based operation is briefly described. Second, the benefits of combining a grid connection and battery supply in Bus Rapid Transit (BRT) systems are introduced. Finally, the planning method is explained and tested in a BRT route in Medellin, Colombia, using computational simulations in combination with real operational data from electric buses that are currently operating in this transit line. Unlike other methods and approaches for Battery Electric Bus (BEB) infrastructure planning, the proposed technique is system-focused, rather than solely limited to the vehicles. The objective of the technique, from the vehicle’s side, is to assist the planner in the correct sizing of batteries and power train capacity, whereas from the system side the goal is to locate and size the route sections to be electrified. These decision variables are calculated with the objective of minimizing the installed battery and achieve minimum Medium Voltage (MV) network requirements, while meeting all technical and reliability conditions. The method proved to be useful to find a minimum feasible cost solution for partially electrifying a BRT line with In-motion Charging (IMC) technology.

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Section: Conductive In-motion Chargingmentioning

confidence: 99%

Section: Conductive In-motion Chargingmentioning

confidence: 99%

A Planning Method for Partially Grid-Connected Bus Rapid Transit Systems Operating with In-Motion Charging Batteries

Díez¹,

Restrepo²

2021

Energies

View full text Add to dashboard Buy / Rent full text

show abstract

“…Dual-source trolley bus's prominent features are the use of rail and its own power battery installed to generate electricity through dual-source. In the cable network section, the network can generate electricity for the bus and charge the battery at the same time, while in the wireless network section, the bus can rely on the power stored in the battery [2,3]. Therefore, not only does the dual-source trolleybus solve the problems of traditional trolleybus controlled by the network layout, which has inherent flaws in energy saving and environmental protection, but also those of new energy bus.…”

Section: Introductionmentioning

confidence: 99%

Energy management strategy based on dynamic programming for dual source trolleybus

et al. 2017

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Original scientific paperThe dual source trolleybus of a new model with battery and super capacitor energy storage system was designed. The related parameters of dynamical system were designed on the basis of theory deduction, and the simulation model was re-developed in ADVISOR software. Based on the analysis of work modes of the dual source trolleybus, an optimal control strategy based on Dynamic Programming was designed, which is aimed at reducing grid peaking power of on-line mode and energy consumption of off-line mode. In addition, the rule based control strategy has also been implemented and compared to the optimized control strategy. The results have demonstrated that the optimization techniques based on Dynamic Programming can make full use of the supercapacitors with high power and fast charging/discharging characteristics, and more effectively distribute the power between the power sources, improve the dynamic performance and economic performance of the trolleybus. Keywords: dual source trolleybus; supercapacitors; energy management; optimal control; Dynamic Programming Strategija upravljanja energijom zasnovana na dinamičkom programiranju za trolejbus s dvojnim izvorom napajanjaIzvorni znanstveni članak Dizajniran je novi model trolejbusa s dvojnim izvorom napajanja s akumulatorom i super električnim kondenzatorom, a s tim povezani parametri dinamičkog sustava dizajnirani su na temelju teorije dedukcije. Simulacijski model razvijen je u ADVISOR softveru. Zasnovana na analizi radnih modova trolejbusa s dvojnim sustavom napajanja, dizajnirana je optimalna strategija upravljanja na temelju dinamičkog programiranja čiji je cilj reduciranje vršne snage mreže on-line moda i potrošnje energije off-line moda. Uz to, upravljačka strategija zasnovana na tom pravilu također je implementirana i uspoređena s poboljšanom strategijom upravljanja. Rezultati su pokazali da metode optimizacije temeljene na dinamičkom programiranju mogu u potpunosti iskoristiti super električni kondenzator velike snage, s brzim punjenjem i pražnjenjem, i učinkovitije rasporediti energiju među izvorima energije te poboljšati dinamičke i ekonomske karakteristike trolejbusa.Ključne riječi: trolejbus s dvojnim izvorom napajanja; super električni kondenzator; upravljanje energijom; optimalno upravljanje; dinamičko programiranje

show abstract

Analysis of energy consumption characteristics of dual-source trolleybus

Cited by 4 publications

References 5 publications

A Planning Method for Partially Grid-Connected Bus Rapid Transit Systems Operating with In-Motion Charging Batteries

A Planning Method for Partially Grid-Connected Bus Rapid Transit Systems Operating with In-Motion Charging Batteries

Energy management strategy based on dynamic programming for dual source trolleybus

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